benibus opened a new pull request, #36654:
URL: https://github.com/apache/arrow/pull/36654
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### Rationale for this change
If a `RecordBatch` is created with column lengths that don't match the
provided `num_rows` (technically invalid), then there are some circumstances
where `ToStructArray` will successfully return an array whose length doesn't
match `num_rows`. Instead, we should return an error.
### What changes are included in this PR?
* Adds a small validation check to `ToStructArray` before constructing the
output array
* Adds a test
### Are these changes tested?
Yes (tests are included)
### Are there any user-facing changes?
No
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